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Evacuation Alert System to BS 8629 are already Mandatory for High Rise Residential buildings in Scotland and are now being specified in the rest of the UK. 

Advanced Electronics Ltd, C-Tec Ltd and Kentec Ltd now have a range of Control Panels available to meet this demand. These new products are in the process of being added to our Web Site.

In the meantime, if you require any further information and/or prices, please feel free to Contact Us

Advanced PSU and Chargers

The Advanced 1.5A, 3.0A and 5.0A power supply units can be used for any fire alarm system which specifies EN54-4 power supply equipment.

Suited for almost any application, the power supply unit/battery charger has been developed using the latest surface mount technology to provide a high efficiency switch mode power supply.

The power supply units are available in fully enclosed construction providing power and fault indication or alternatively in caged versions for mounting into existing enclosures of various sizes to suit different battery capacities.

PSE and charger or PSE only options on the 3.0A and 5.0A versions.

A Serial Link option is provided on the 3.0A and 5.0A versions. Allows reporting of PSE status and voltages / current measurements to compatible control panel / modules.

These units are available as follows:
  • Mxp-549: 1.5A PSE in 7Ah enclosure
  • Mxp-550: 3.0A PSE in 17Ah enclosure
  • Mxp-550/D: 3.0A PSE in 38Ah enclosure
  • Mxp-551: 5.0A PSE in 17Ah enclosure
  • Mxp-551/D: 5.0A PSE in 38Ah enclosure


For any fire alarm system which specifies EN54-4 power supplies (e.g. BS5839 code of practice).

These power supply units can be used in any fire alarm installation requiring a 24Volt supply for operation.


A range of power supply equipment with power output options to suit most applications

Universal AC input on the 3.0A and 5.0A versions.

High efficiency switched mode power supplies

Compact 1.5A, 3.0A and 5.0A versions v1.0

Key Features

  • Approved EN54-4
  • Boxed or un-boxed
  • Power and fault indication
  • 3 Year Warranty


Approvals:                                             All power supply units are approved with the requirements of BS EN54-4 1998, EN55022                                                                               class B emissions limits & EN60950: 2000 safety standards.

Input Supply:                                         1.5A PSE:220-240V AC, 50/60Hz, fuse T3.15H250 - 3.0A/5.0A PSE:200-240V AC, 50/60Hz,                                                                              fuse T3.15H250

Output Voltage:                                     Max 28.5V DC, Min 18.5V DC at minimum battery voltage of 19V with mains disconnected

Charger voltage:                                  27.4V DC nominal at 20°C temperature compensated over the range -5°C to +45°C

Output Current:                                    1.5A PSU: 1.0A continuous load, 0.5A battery charge

                                                                3.0A PSU: 2.0A continuous load, 1.0A battery charge [3.0A to load if configured for PSU only]

                                                                5.0A PSU: 3.0A continuous load, 2.0A battery charge [5.0A to load if configured for PSU only]

Dimensions Boxed H x W x D mm:  7Ahr 263 x 246 x 85. 17Ahr 378 x 338 x 110. 38Ahr 410 x 363 x 185.

Enviroment:                                           Indoor, dry

Fault Output:                                          Volt-free change-over contacts rated 1A @ 30V dc

On Board Indication:                            Mains Fail, Charger Fail, Battery Open Circuit, Battery Low & Heartbeat


Mxp-549: 1.5A EN54-4 PSU & Charger (boxed - up to 7Ah battery capacity).  


Mxp-550: 3A EN54-4 PSU & Charger (boxed - up to 17Ah battery capacity).  


Mxp-550D: 3A EN54-4 PSU & Charger (boxed, deep enclosure - up to 38Ah battery capacity).  


Call for Price

Mxp-551: 5A EN54-4 PSU & Charger (boxed - up to 17Ah battery capacity).

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